Fivetran incident
Fivetran: OAuth Authentication Issues Affecting Multiple Connections
Resolved after 1 hour 7 minutes, affecting General Services, on March 26, 2026.
This incident has been resolved. We have observed that error rates have returned to normal levels, and the service is operating as expected. Incident Summary Description: We identified an issue with the OAuth Authentication that is affecting multiple connections, resulting in a 404 error. Timeline: The issue began on 26/03/2026 at 09:09 UTC and was resolved on 26/03/2026 at 16:42 UTC. Cause: During an ingress upgrade, an error caused OAuth callback requests to return HTTP 404 responses. This led to authentication failures for connections relying on OAuth. Resolution: The change was reverted, which restored normal OAuth functionality for Fivetran connections.
Affected components
Update timeline
- identified Mar 26, 2026, 04:05 PM UTC
The issue has been identified and we are working to resolve it.
- monitoring Mar 26, 2026, 05:00 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Mar 26, 2026, 05:12 PM UTC
This incident has been resolved. We have observed that error rates have returned to normal levels, and the service is operating as expected. Incident Summary Description: We identified an issue with the OAuth Authentication that is affecting multiple connections, resulting in a 404 error. Timeline: The issue began on 26/03/2026 at 09:09 UTC and was resolved on 26/03/2026 at 16:42 UTC. Cause: During an ingress upgrade, an error caused OAuth callback requests to return HTTP 404 responses. This led to authentication failures for connections relying on OAuth. Resolution: The change was reverted, which restored normal OAuth functionality for Fivetran connections.
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